EWN-Y Series Metering Pump

Safety
instructions
Overview
Installation
Operation
Maintenance
Specification
2011 IWAKI CO., LTD.
Iwaki
Electromagnetic Metering Pump
EWN-Y
Instruction manual
Thank you for choosing our product.
Please read through this instruction manual before use.
This instruction manual describes important precautions and
instructions for the product. Always keep it on hand for quick
reference.
http://www.iwakipumps.jp
IWAKI CO.,LTD. 6-6 Kanda-Sudacho 2-chome Chiyoda-ku Tokyo 101-8558 Japan
TEL: +81 3 3254 2935 FAX: +81 3 3252 8892
European office / IWAKI Europe GmbH
TEL: +49 2154 9254 0 FAX: +49 2154 9254 48
Norway / IWAKI Norge AS
TEL: +47 23 38 49 00 FAX: +47 23 38 49 01
Australia / IWAKI Pumps Australia Pty Ltd.
TEL: +61 2 9899 2411 FAX: +61 2 9899 2421
Germany / IWAKI Europe GmbH
TEL: +49 2154 9254 50 FAX: +49 2154 9254 55
Sweden / IWAKI Sverige AB
TEL: +46 8 511 72900 FAX: +46 8 511 72922
China (Hong Kong) / IWAKI Pumps Co., Ltd.
TEL: +852 2607 1168 FAX: +852 2607 1000
Holland / IWAKI Europe GmbH (Netherlands Branch)
TEL: +31 74 2420011 FAX: +49 2154 9254 48
U.K. / IWAKI Pumps (U.K.) LTD.
TEL: +44 1743 231363 FAX: +44 1743 366507
China (Guangzhou) / GFTZ IWAKI Engineering & Trading Co., Ltd.
TEL: +86 20 84350603 FAX: +86 20 84359181
Italy / IWAKI Europe GmbH (Italy Branch)
TEL: +39 0444 371115 FAX: +39 0444 335350
U.S.A. / IWAKI America Inc.
TEL: +1 508 429 1440 FAX: +1 508 429 1386
China / IWAKI Pumps (Shanghai) Co., Ltd.
TEL: +86 21 6272 7502 FAX: +86 21 6272 6929
Spain / IWAKI Europe GmbH (Spain Branch)
TEL: +34 93 37 70 198 FAX: +34 93 47 40 991
Argentina / IWAKI America Inc. (Argentina Branch)
TEL: +54 11 4745 4116
Korea / IWAKI Korea Co., Ltd.
TEL: +82 2 2630 4800 FAX: +82 2 2630 4801
Belgium / IWAKI Belgium N.V.
TEL: +32 13 670200 FAX: FAX: +32 13 672030
Singapore / IWAKI Singapore Pte Ltd.
TEL: +65 6316 2028 FAX: +65 6316 3221
Taiwan / IWAKI Pumps Taiwan Co., Ltd.
TEL: +886 2 8227 6900 FAX: +886 2 8227 6818
Denmark / IWAKI Nordic A/S
TEL: +45 48 242345 FAX: +45 48 242346
Indonesia / IWAKI Singapore (Indonesia Branch)
TEL: +62 21 6906606 FAX: +62 21 6906612
Thailand / IWAKI (Thailand) Co., Ltd.
TEL: +66 2 322 2471 FAX: +66 2 322 2477
Finland / IWAKI Suomi Oy
TEL: +358 9 2745810 FAX: +358 9 2742715
Malaysia / IWAKIm SDN. BHD.
TEL: +60 3 7803 8807 FAX: +60 3 7803 4800
Vietnam / IWAKI Pumps Vietnam Co., Ltd.
TEL: +84 613 933456 FAX: +84 613 933399
France / IWAKI France S.A.
TEL: +33 1 69 63 33 70 FAX: +33 1 64 49 92 73
T806-3 '16/04

2 Order confirmation
Order confirmation
Open the package and check that the product conforms to your order. If
any problem or inconsistency is found, immediately contact your distribu-
tor.
a. Check if the delivery is correct.
Check the nameplate to see if the
information such as model codes,
discharge capacity and discharge
pressure are as ordered.
b. Check if the delivery is damaged or deformed.
Check for transit damage and loose bolts.

3
Contents
Contents
Order confirmation ............................................................................................. 2
Safety instructions .......................................................................7
Warning............................................................................................................. 8
Caution.............................................................................................................10
Precautions for use ........................................................................................14
Overview...................................................................................... 18
Introduction.....................................................................................................18
Pump structure & Operating principle .........................................................18
Auto degassing system ..........................................................................19
Features...................................................................................................... 20
Operational functions ................................................................................... 20
Manual mode.............................................................................................. 20
EXT mode....................................................................................................21
Digital control .........................................................................................21
Analogue proportional control............................................................... 22
Pulse proportional control ......................................................................24
PRIME mode .............................................................................................. 25
Control functions......................................................................................... 26
STOP function....................................................................................... 26
Pre-STOP function................................................................................ 26
AUX function ......................................................................................... 27
Interlock function................................................................................... 27
Output functions ......................................................................................... 27
OUT1 (mechanical relay)....................................................................... 27
OUT2 (photoMOS relay) ....................................................................... 28
Analogue output .................................................................................... 28
Control with external devices ...................................................................... 29
Combination with the EFS flow sensor....................................................... 29
Feedback control................................................................................... 30
Batch control ..........................................................................................31
Combination with the FCP and FCM flow checker/counter........................ 33
A. MODE ............................................................................................... 33
B. MODE ............................................................................................... 34
C. MODE............................................................................................... 35
D. MODE ............................................................................................... 35

4 Contents
Part names.......................................................................................................37
Pump............................................................................................................37
Operational panel ....................................................................................... 38
Basic displays & Pump states ............................................................... 39
Identification codes....................................................................................... 40
Pump/Drive units ........................................................................................ 40
Installation ..................................................................................42
Pump mounting.............................................................................................. 42
Plumbing......................................................................................................... 43
Tube connection ......................................................................................... 43
Check valve mounting ................................................................................ 45
Wiring (pump)..................................................................................................47
End terminals.............................................................................................. 48
Power voltage/Earthing .............................................................................. 48
Signal wire connection................................................................................ 50
STOP signal ...........................................................................................51
Input signal.............................................................................................52
Output signal ..........................................................................................52
Wiring (external devices) .............................................................................. 53
EFS flow sensor mounting (purchase separately)...................................... 53
FCP/FCM mounting (purchase separately) ................................................ 56
Flow counter (FCP) ............................................................................... 56
Flow checker (FCM) .............................................................................. 56
FCP/FCM wiring .................................................................................... 57
Operation.....................................................................................58
Before operation............................................................................................ 58
Points to be checked .................................................................................. 58
Retightening of pump head fixing bolts ...................................................... 58
Use of hexagon wrench instead of a torque wrench............................. 59
Stroke rate adjustment................................................................................ 59
Degassing................................................................................................... 60
EWN-VC/-VH/-PC/-PH/-TC/-PP/-SH..................................................... 60
EWN-FC/-P6-V ..................................................................................... 62
Flow rate adjustment .................................................................................. 64
Stroke rate adjustment .......................................................................... 65
Stroke length adjustment....................................................................... 66
Flow calibration ......................................................................................67
Before a long period of stoppage (one month or more).............................. 68
Operation programming ............................................................................... 69
Programming flow........................................................................................72

5
Contents
Manual operation.........................................................................................74
EXT operation..............................................................................................75
Digital control .........................................................................................75
Buffer ON/OFF selection (MULT/DIV)....................................................76
Analogue proportional control............................................................... 77
Pulse proportional control ..................................................................... 82
Priming function.......................................................................................... 85
Keypad lock ................................................................................................ 85
Keypad lock activation........................................................................... 85
Keypad lock release.............................................................................. 86
Emergency stop with a keypad lock state ............................................. 86
Unit change..................................................................................................87
Stroke rate unit .......................................................................................87
Flow rate unit..........................................................................................87
User mode .................................................................................................. 88
Output setting........................................................................................ 89
INPUT setting........................................................................................ 92
EXT mode setting.................................................................................. 94
FCP/FCM setting................................................................................... 94
PIN number entry ...................................................................................97
Operation history................................................................................... 98
Combination with the EFS flow sensor....................................................... 99
Feedback control................................................................................... 99
Batch control ....................................................................................... 100
Buffer ON/OFF selection (Batch) .........................................................101
Default setting ......................................................................................102
Out of measurement and Poor flow alarms (OUT1 & 2) ......................103
Maintenance..............................................................................105
Troubleshooting............................................................................................106
Error codes....................................................................................................107
Error code information...............................................................................107
Countermeasures ......................................................................................107
Error display...............................................................................................107
Inspection......................................................................................................108
Daily inspection .........................................................................................108
Periodic inspection ....................................................................................108
Wear part replacement.................................................................................109
Wear part list..............................................................................................109
Before replacement ...................................................................................110
Valve set replacement ...............................................................................110
Discharge valve set disassembly/assembly.........................................110

6 Contents
Suction valve set disassembly/assembly.............................................112
Spacer set replacement (auto degassing type)....................................113
Air vent valve set replacement (auto degassing type)..........................114
Diaphragm replacement ............................................................................114
Exploded view...............................................................................................117
Pump head, Drive unit & Control unit ........................................................117
Pump head ................................................................................................118
EWN-VC/VH/VE/PC/PH/PE/TC ..........................................................118
EWN FC ...............................................................................................119
EWN SH...............................................................................................120
EWN-C31 P6-V....................................................................................121
EWN-B11/-B16/-C16/-C21 VC-A/VH-A................................................122
Specifications/Outer dimensions ...............................................................123
Specifications ............................................................................................123
Pump unit .............................................................................................123
Control unit...........................................................................................126
Power cable..........................................................................................127
Pump colour .........................................................................................127
Outer dimensions.......................................................................................128
EWN-B11/-B16/-B21/-C16/-C21 VC/VH/VE/PC/PH/PE ......................128
EWN- B31/-C31 VC/VH/VE/PC/PH/PE ...............................................128
EWN-C36 VC/VH/VE/PC/PH/PE ........................................................129
EWN-B11/-B16/-B21/-C16/-C21 FC .....................................................129
EWN-B31/-C31 FC...............................................................................130
EWN-C36 FC .......................................................................................130
EWN-B11/-B16/-B21/-C16/-C21 TC .....................................................131
EWN-B31/-C31 TC...............................................................................131
EWN-C36 TC .......................................................................................132
EWN-B11/-B16/-B21/-C16/-C21 SH.....................................................132
EWN-B31/-C31 SH...............................................................................133
EWN-C36 SH.......................................................................................133
EWN-B11/-B16/-B21/-C16/-C21 VC-C/VH-C/VE-C (high compression type)............134
EWN-B11/-C-16 PC-H/PH-H/PE-H (high pressure type).....................134
EWN-B11/-C16 SH-H (high pressure type)..........................................135
EWN-C31 P6-V (high viscosity type)...................................................135
EWN-B11/-B16 (auto degassing type)..................................................136
EWN-C16/-C21 (auto degassing type).................................................136

7
Safety
instructions
Safety instructions
Read through this section before use. This section describes
important information for you to prevent personal injury or
property damage.
■ Symbols
In this instruction manual, the degree of risk caused by incorrect use is noted
with the following symbols. Please pay attention to the information associated
with the symbols.
Indicates mishandling could lead to a fatal or seri-
ous accident.
WARNING
A symbol accompanies each precaution, suggesting the use of "Caution", "Pro-
hibited actions" or specific "Requirements".
Indicates mishandling could lead to personal injury
or property damage.
CAUTION
Caution marks Prohibited mark Requirement mark
Electrical
shock
Caution Requirement
Prohibited Do not rework
or alter
Wear
protection
Grounding
Safety instructions
Export Restrictions
Technical information contained in this instruction manual might be treated
as controlled technology in your countries, due to agreements in international
regime for export control.
Please be reminded that export license/permission could be required when this
manual is provided, due to export control regulations of your country.

8 WARNING
Turn off power before service
Risk of electrical shock. Be sure to turn off power to stop the pump
and related devices before service is performed.
Couper l’alimentation électrique de la pompe avant intervention
Intervenir sur la pompe sans avoir au préalablement coupé
l’alimentation électrique peut déclencher des décharges électr-
iques. Avant d’entreprendre n’importe quel type d’intervention, veil-
lez à mettre la pompe et tout dispositif connexe hors tension à l’aide
de l’interrupteur prévu à cet effet.
Stop operation
If you notice any abnormal or dangerous conditions, suspend op-
eration immediately and inspect/solve problems.
Arrêter le fonctionnement
Si vous détectez une anomalie ou des signes suspects et inhab-
ituels pendant le fonctionnement, interrompez immédiatement les
opérations et inspectez, résolvez les problèmes.
Do not use the pump in any condition other than its intended purpose
The use of the pump in any conditions other than those clearly
specified may result in failure or injury. Use this product in specified
conditions only.
Se conformer uniquement aux applications prévues
La pompe doit être utilisée conformément à l’usage pour lequel elle
a été prévue et dans le respect de ses caractéristiques techniques.
Toute utilisation non conforme peut entraîner un incident ou endom-
mager le dispositif.
Do not modify the pump
Alterations to the pump carries a high degree of risk. It is not the
manufacturer's responsibility for any failure or injury resulting from
alterations to the pump.
Ne pas modifier la pompe
Ne jamais modifier une pompe sous peine de causer un incident
grave. Iwaki ne pourra en aucun cas être tenu responsable d’un inci-
dent ou de dégâts survenus à la suite d’une modification du dispositif.
WARNING
Requirement
Do not remodel
Electrical
shock
Prohibited

9
Safety
instructions
Wear
protectors
Prohibited
Prohibited
Prohibited
Wear protective clothing
Always wear protective clothing such as an eye protection, chemical
resistant gloves, a mask and a face shield during disassembly, assem-
bly or maintenance work. The specific solution will dictate the degree
of protection. Refer to MSDS precautions from the solution supplier.
Porter un équipement de protection
Toujours porter un équipement de protection (lunettes, gants résistants
aux produits chimiques, masque, casque) durant le démontage,
l’assemblage et la maintenance.
Le travail effectué dictera le degré de protection. Référez-vous au
MSDS de la solution proposée par le fournisseur.
Do not damage the power cable
Do not pull, knot, or crush the power cable. Damage to the power
cable could lead to a fire or electrical shock if cut or broken.
Ne pas endommager le câble électrique
Ne pas tirer ou faire un nœud avec le câble électrique. Endom-
mager un câble électrique pout provoquer une incendie ou une
décharge électrique.
Do not operate the pump in a flammable atmosphere
Do not place explosive or flammable material near the pump.
Ne pas utiliser la pompe dans une atmosphère explosive
Pour votre sécurité, du matériel dangereux ou inflammable ne doit
pas être placé près de la pompe.
Risk of electric shock
This pump is supplied with a grounding conductor and grounding-
type attachment plug. To reduce the risk of electric shock, be
certain that it is connected only to a properly grounded, grounding
type receptacle.
Risque de choc électrique
La pompe est fournie avec un conducteur pour mise à la terre et
une prise courant. Afin de réduire le risque de choc électrique, veil-
lez à ce que la terre soit correctement raccordée.
WARNING

10 CAUTION
Qualified personnel only
The pump should be handled or operated by qualified personnel with a
full understanding of the pump. Any person not familiar with the prod-
uct should not take part in the operation or maintenance of the pump.
Opérateur qualifié uniquement
La pompe doit être manipulée ou utilisée par du personnel qualifié
connaissant parfaitement la pompe. Tout autre personne étrangère ne
doit pas prendre part à l’utilisation ou à la maintenance de la pompe.
Use specified power only
Do not apply power other than that specified on the nameplate. Other-
wise, failure or fire may result. Ensure the pump is properly grounded.
Utilisez une tension appropriée uniquement
Ne pas appliquer une autre tension que celle spécifiée sur la
plaque signalétique sinon, il peut en résulter une panne ou une in-
cendie. Assurez-vous également de la mise à la terre de la pompe.
Do not run pump dry
Do not run pump dry for more than 30 minutes (even when the
pump runs for degassing). Otherwise, the pump head fixing screws
may loosen and liquid may leak. Optimise your system. If the pump
runs dry for a long period (for more than 30 minutes), the pump
head and the valve cases may deform by friction heat and conse-
quently leakage results.
Ne faite pas fonctionner la pompe à sec
Ne faite pas fonctionner la pompe à sec plus de 30 minutes (même
lorsque la pompe fonctionne pour dégazer). Sinon, les visses de
fixation de la tête peuvent se dévisser et il peut y avoir une fuite
de liquide. Optimalisez l’installation de façon à ce que la pompe
ne fonctionne pas à sec. Si la pompe fonctionne à sec pour une
longue période (plus de 30 minutes), la tête de la pompe et le guide
de clapets peuvent être déformés par friction causée par la chaleur
et il en résulterait des fuites.
CAUTION
Requirement
Caution
Prohibited

11
Safety
instructions
Keep electric parts and wiring dry
Risk of fire or electric shock. Install the pump where it can be kept dry.
Ne mouillez pas les parties électriques ou les câbles
Risque d’incendie ou de décharge électrique. Installez la pompe
dans un endroit sec.
Observe an applicable MSDS
Take account of installation environment. Chemicals should be
controlled in accordance with a MSDS. Do not send potable water
or circulate heated water with this pump.
Observez un « MSDS » applicable
Tenez compte de l’environnement. Les produits chimiques doivent
être surveillés en accord avec un MSDS. Ne pas utilisez cette
pompe avec de l'eau potable ou de l'eau chaude.
Do not install or store the pump:
• In a flammable atmosphere.
• In a dusty/humid environment.
• Where ambient temperature can exceed 0-40ºC.
• In direct sunlight or wind & rain.
N’installez ou ne stockez pas la pompe dans les endroits suivantes:
• Dans une atmosphère inflammable
• Dans un endroit poussiéreux ou humide.
• Dans une place où la température n’est pas comprise entre 0 et 40 °C.
• Directement sous le soleil, le vent ou la pluie.
Spill precautions
Ensure protection and containment of solution in the event of
plumbing or pump damage (secondary containment).
Déversement accidentel
Prenez des mesures protectrices contre tout incident résultant d’un
débit trop important de la pompe ou d’une casse de tuyauterie.
Caution
Requirement
Prohibited
Prohibited
CAUTION

12
Do not use the pump in a wet location
The pump is not waterproof. Use of the pump in wet or extremely
humid locations could lead to electric shock or short circuit.
N’utilisez pas la pompe sous l’eau
La pompe n’est pas complètement étanche. Utiliser la pompe dans
l’eau ou dans un endroit très humide peut créer une décharge élect-
rique ou un court-circuit.
Grounding
Risk of electrical shock! Always properly ground the pump. Con-
form to local electric codes.
Mise à la terre
Veillez à ne pas faire fonctionner la pompe sans avoir au préalable
prévu une mise à la terre. Celle-ci permettra d’éviter d’éventuelles
décharges électriques. Vérifiez que le câble de mise à la terre est
bien branché.
Install a GFCI (earth leakage breaker)
An electrical failure of the pump may adversely affect other de-
vices on the same line. Purchase and install a GFCI (earth leakage
breaker) separately.
Détecteur de fuites à la terre
Un problème électrique peut affecter défavorablement le dispositif.
Achetez et installez un détecteur de fuites à la terre.
Preventative maintenance
Follow instructions in this manual for replacement of wear parts. Do
not disassemble the pump beyond the extent of the instructions.
Remplacement des pièces usées
Suivez les instructions de ce manuel pour remplacer les pièces
usées. Ne démontez pas la pompe au-delà des instructions.
Do not use a damaged pump
Use of a damaged pump could lead to an electric shock or death.
N’utilisez pas une pompe endommagée
Utiliser une pompe endommagée peut provoquer une décharge
électrique ou la mort.
Requirement
Electrical
shock
Prohibited
Grounding
Prohibited
CAUTION

13
Safety
instructions
Disposal of a used pump
Dispose of any used or damaged pump in accordance with local
rules and regulations. If necessary, consult a licensed industrial
waste disposal company.
Elimination des pompes usées
Elle doit se faire en conformité avec les règles locales en vigueur
(consultez une entreprise certifiée et spécialisée).
Check pump head bolts
Liquid may leak if any of the pump head bolts become loose.
Tighten the bolts evenly to the following torque in diagonal order
before initial operation and at regular intervals.
Tightening torque
EWN-B09/-B11/-B16/-B21/-C16/-C21 : 19 lb-in
EWN-B31/-C31/-C36 : 22.6 lb-in
Serrez la tête de pompe
La pompe peut fuiter si les boulons sont desserrés. Resserrez les
boulons diagonalement et uniformément avant la première utilisa-
tion Resserrez les boulons régulièrement pour éviter tout fuite.
Couple de serrage
EWN-B09/-B11/-B16/-B21/-C16/-C21 : 19 lb-in
EWN-B31/-C31/-C36 : 22.6 lb-in
Solution compatibility
This pump has been evaluated for use with water only. The suitabil-
ity of this pump for use with liquids other than water, such as acid
and alkaline, is the responsibility of the user. For liquids other than
water, select the best-suited liquid end material combination using a
chemical compatibility chart.
Compatibilité avec la solution
Cette pompe a été évaluée pour l’utilisation avec l’eau uniquement.
L’aptitude de cette pompe à être utilisée avec d’autres produits, tels
que les acides et les alcalins, est de la responsabilité de l’utilisateur.
Pour des liquides autres que l’eau, choisissez le matériel le plus
compatible selon la résistance chimique.
Requirement
Caution
Caution
CAUTION

14 Precautions for use
• Electrical work should be performed by a qualified electri-
cian. Otherwise, personal injury or property damage could
result.
Le raccordement électrique de la pompe doit être effectué
par du personnel qualifié sinon, il pourrait y avoir un dom-
mage corporel ou incorporel.
• Do not install the pump:
–In a flammable atmosphere.
–In a dusty/humid place.
–In direct sunlight or wind & rain.
–Where ambient temperature can exceed 0-40ºC.
Protect the pump with a cover when installing it out of
doors.
Ne pas installer la pompe dans les endroits suivants:
–Dans une atmosphère inflammable
–Dans une atmosphère poussiéreuse ou humide.
–Sous les rayonnements du soleil, dans le vent ou sous la pluie.
–La température ambiante doit être comprise entre 0 et 40°C.
Protégez la pompe par un capot si vous l’installez dehors.
• Select a level location, free from vibration, that won't hold
liquid. Anchor the pump with four M5 bolts so it doesn't
vibrate. If the pump is not installed level, output may be
affected.
Choisissez un endroit où il n’y a pas de vibrations et où le
liquide peut s’évacuer. Fixez la pompe à l’aide de visses
M5 de façon à ne pas avoir de vibrations. Si la pompe est
inclinée, le débit peut être réduit.
Precautions for use
Caution

15
Safety
instructions
• When two or more pumps are installed together, vibration
may be significant, resulting in poor performance or failure.
Select a solid foundation (concrete) and fasten anchor bolts
securely to prevent vibration during operation.
Si plusieurs pompes sont installées ensemble, elles intera-
gissent et les vibrations peuvent devenir importantes, ce
qui engendre des performances médiocres ou des ratures.
Choisissez un endroit solide et fixez les boulons correcte-
ment pour évitez les vibrations pendant le fonctionnement.
• Allow sufficient space around the pump for easy access
and maintenance.
Prévoyez de l’espace autour de la pompe pour faciliter
l'accès et la maintenance.
• Install the pump as close to the supply tank as possible.
Installez la pompe le plus près possible du tank de produit.
• When handling liquids that generate gas bubbles (sodium
hypochlorite or hydrazine solution), install the pump in a
cool and dark place. Flooded suction installation is strongly
recommended.
Installez la pompe dans une place froide à l’abri du soleil
lorsqu’il s’agit du dosage de produits dégazant tels que
l’hypochlorite de sodium ou l’hydrazine. Mettre la pompe en
charge est vivement recommandé.
Caution
Caution
Caution
Caution
Precautions for use

16
• Use care handling the pump. Do not drop. An impact may
affect pump performance. Do not use a pump that has
been damaged to avoid the risk of electrical damage or
shock.
Veillez à ne pas laisser tomber la pompe sur le sol. Un
impact important pourrait réduire les performances de la
pompe. Ne pas utiliser une pompe endommagée sinon il
pourrait y avoir un courant de fuite ou une décharge élect-
rique.
• The pump has a rating of IP65, but is not waterproof. Do
not operate the pump while wet with solution or water.
Failure or injury may result. Immediately dry off the pump if
it gets wet.
Le pompe est IP65 mais n’est pas complètement étanche.
Ne pas laisser la pompe couverte de liquide pompé ou
sous la pluie. Il pourrait y avoir des ratés ou préjudices. Si
la pompe a été mouillée, sechez-la directement.
• Do not close discharge line during operation. Solution may
leak or piping may break. Install a relief valve to ensure
safety and prevent damaged plumbing.
Ne fermez pas la ligne de refoulement lorsque la pompe est
en fonctionnement sinon il pourrait y avoir des fuites de liq-
uide ou la tuyauterie pourrait céder. Installez une soupape
de sécurité pour des raisons de sécurité et pour éviter tout
dommage de la tuyauterie.
• Do not remove the control unit. Note that an applicable con-
trol unit differs with each drive unit. Do not attach a control
unit to a different drive unit. Otherwise, an electrical circuit
or the drive unit may fail.
N’enlevez pas l’unité de contrôle. Chaque partie électro-
magnétique a son propre unité de contrôle. Ne mettez pas
autre unité de contrôle au module de puissance sinon il
pourrait y avoir un court circuit ou un disfonctionnement de
la partie électromagnétique.
Precautions for use
Caution
Caution
Caution

17
Safety
instructions
• Solution in the discharge line may be under pressure.
Release the pressure from the discharge line before dis-
connecting plumbing or disassembly of the pump to avoid
solution spray.
Le liquide au refoulement peut être sous pression.
Relâchez la pression du refoulement avant de démonter la
pompe ou d’enlevez le tubage pour éviter tout jet de liquide.
• Wear protective clothing when handling or working with
pumps. Consult solution MSDS for appropriate precautions.
Do not come into contact with residual solution.
Portez un équipement de sécurité lorsque vous manipulez
la pompe. Consultez le MSDS pour utilisez les précautions
appropriées .Evitez tout contact avec le liquide chimique.
• Do not clean the pump or nameplate with a solvent such
as benzine or thinner. This may discolour the pump or
erase printing. Use a dry or damp cloth or a neutral
detergent.
Ne nettoyez pas la pompe ou la plaque signalétique à
l’aide d’un solvant comme le benzène ou le white spirit.
Cela pourrait décolorer la pompe ou effacer l’impression.
Utilisez un tissu sec ou mouillé avec de l’eau ou un déter-
gent neutre.
• This pump has been eveluated for use with water only.
Cette pompe a été testée uniquement avec de l'eau.
Caution
Requirement
Benzine
Thinner
Caution
Precautions for use

18
OUT
IN
Overview
Introduction
Pump characteristics, features and part names are described
in this section.
Introduction
Pump structure & Operating principle
The EWN-Y is a diaphragm metering pump which consists of a pump head,
drive unit and control unit, and features the external and feedback control with
the EFS flow sensor or other devices.
Principle of operation
The pulse signal controls the electromagnetic force and spring force in order
to make reciprocating motion. The reciprocating motion is transferred to a
diaphragm through a plunger and then volumetric change occurs in the pump
head. This action transfers liquid along with pump head valve action.
Control unit Pump head
Drive unit
Spring
Pump head valve
(Discharge side)
Pump head valve
(Suction side)
Plunger
Diaphragm

19
Overview
■ Auto degassing system
The lower opening pressure (open air pressure) of the auto vent valves than
the outlet check valves lead the entrained gas to the open air via the branched
air vent route. Once all gas in the pump head is expelled, liquid starts to flow
the main path to the outlet.
OUT
OUT
LOCK
Pump head
Inlet port
Air vent valve
Automatic air
vent valve body
Pump head valve
Outlet port
Air vent port
(Manual) Expelled to air or plumbed
back to the supply tank
Introduction

20
Features
● Multivoltage operation
The EWN-Y series is a multivoltage type (100-240VAC) and can be selected
without concern for local power voltage.
● IP rating of 65
The sealed drive unit and control unit assure IP65.
*This pump is not waterproof. Protect the pump with a cover when installing it out of
doors.
● Feedback control (with the EFS flow sensor)
Use of the EFS automatically controls a stroke rate to meet the target flow
rate under any pressure fluctuation.
*This pump is not waterproof. Protect the pump with a cover when installing it out of
doors.
Operational functions
Manual mode
Run/stop the pump by the start/stop key. A stroke rate (MAN speed) can be
changed in the range of 0-100%(/1-360spm) by the up and the down keys at
any time during operation or stop. See page 74 for detail.
Pump operation
Run Run
Stop
Key operation
(Push key)
Stop
Under feedback control
Flow rate
1.0MPa
0
Target rate
No feedback control
Pressure

21
Overview
EXT mode
■ Digital control
Multiplier setting
The pump operation by the external signal. Set a multiplier before operation.
1-999 shots can be allocated to one external pulse. See page 75 for detail.
*In the EXT operation, the pump runs at the MAN speed.
Example) When the multiplier is set to 5, the pump makes five shots per
signal.
A buffer works when the pump receives an external pulse before the set
shots per signal is completed. The buffer is active with the factory default
settings.
*The buffer stores the external signals for up to 65535 shots.
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3
Pulse signal input
Pump operation
1 2 3 4 5 1 2 3 4 5
Pulse signal input
Pump operation

22
Pulse signal input
Pump operation
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
Divisor setting
The pump operation by the external signal. Set a divisor before operation.
1-9999 external pulses can be allocated to make one shot.
*The pump can not run over the MAN speed even if the divisor is set to run the pump
beyond that speed.
Example) When the divisor is set to 5, the pump makes one shot every 5
signals.
A buffer works when the pump receives the number of external pulses that
will run the pump over the MAN speed. The buffer is inactive with the factory
default settings.
*The buffer stores the external signals for up to 65535 shots.
■ Analogue proportional control
ANA. R (analogue rigid) setting
The pump increases/decreases a stroke rate in proportion to 0-20mA current
input. Four preset patterns (4-20mA, 20-4mA, 0-20mA, 20-0mA) are provided.
See page 77 for detail.
Condition:
a. 4-20mA (default setting)
b. 20-4mA
c. 0-20mA
d. 20-0mA
20mA
100%
0 4
a
d
c
b
Stroke/
Flow rate
Current value

23
Overview
ANA. V (analogue variable) setting
The pump increases/decreases a stroke/flow rate in proportion to 0-20mA.
Determine the operational behaviour by setting two set points and choosing
one of the LINE, BOX and LIMIT patterns. See page 79 for detail.
<LINE>
A stroke/flow rate changes with a current value by a set line.
Condition:
SP1 = 6 mA, 30%
SP2 = 17 mA, 85%
<BOX>
A stroke/flow rate changes with a current value by a set line. The rate does
not exceed the Set Point 2 but then fall to 0 before the Set Point 1.
Condition:
SP1 = 6 mA, 30%
SP2 = 17 mA, 85%
<LIMIT>
A stroke/flow rate changes with a current value by a set line. The rate does
not fall below the Set Point 1 or exceed the Set Point 2.
Condition:
SP1 = 6 mA, 30%
SP2 = 17 mA, 85%
20mA
100%
17
30
85
SP.1
SP.2
0 6
20mA
100%
17
30
85
SP.1
SP.2
0 6
20mA
100%
17
30
85
SP.1
SP.2
0 6

24
■ Pulse proportional control
PLS (pulse) setting
The pump increases/decreases a stroke/flow rate in proportion to 0-500Hz (or
0-100Hz, user selectable). Determine the operational behaviour by setting two
set points and choosing one of the LINE, BOX and LIMIT patterns. See page
82 as well.
<LINE>
A stroke/flow rate changes with a pulse rate by a set line.
Condition:
SP1 = 100Hz, 30%
SP2 = 350Hz, 85%
<BOX>
A stroke/flow rate changes with a pulse rate by a set line. The rate does not
exceed the Set Point 2 but then fall to 0 before the Set Point 1.
Condition:
SP1 = 100Hz, 30%
SP2 = 350Hz, 85%
500Hz
100%
350
30
85
SP.1
SP.2
0 100
100%
30
85
SP.1
SP.2
0 500Hz
350
100

25
Overview
<LIMIT>
A stroke/flow rate changes with a pulse rate by a set line. The rate does not
fall below the Set Point 1 or exceed the Set Point 2.
Condition:
The left graph is in the fol-
lowing setting.
SP1 = 100Hz, 30%
SP2 = 350Hz, 85%
PRIME mode
The pump runs at the maximum stroke rate while both the UP and DOWN keys
are pressed. Use this function for degassing.
▲+▼ keys
Pump operation
Press
Stop
Run Run
Press
Stop
100%
30
85
SP.1
SP.2
0 500Hz
350
100

26
Control functions
■ STOP function
The start/stop of the pump can be controlled by external devices such as a
level sensor. This function is dominated by the PRIME or AUX function.
When the "CL-ON" option is selected:
The pump stops while receiving the external signal via the STOP terminal (closed circuit).
*The pump resumes operation when the STOP signal is released.
When the "CL-OF" option is selected:
The pump runs while receiving the external signal via the STOP terminal (closed circuit).
*The pump stops operation when the STOP signal is released.
■ Pre-STOP function
When the "CL-ON" option is selected:
The STOP LED lights orange while the pump is receiving the external signal
via the Pre-STOP terminal (closed circuit). Note the pump does not start or
stop running.
When the "CL-OFF" option is selected:
The STOP LED stops lightening while the pump is receiving the external sig-
nal via the Pre-STOP terminal (closed circuit). Note the pump does not start
or stop running.
STOP signal input
Pump operation
Run Run
Stop
STOP signal input
Pump operation
Run
Stop Stop
The pump stops running while
the STOP signal is inputted.

27
Overview
■ AUX function
The pump runs at the maximum stroke rate of 360(/240/180)spm while receiv-
ing the external signal via the AUX terminal. Use this function for degassing.
■ Interlock function
The start/stop of the pump can be controlled by the external signal via the input
terminal. This function is dominated by the PRIME or STOP function.
Output functions
The pump has the following outputs with different functions.
■ OUT1 (mechanical relay)
The pump transmits the no voltage contact signal:
At STOP signal input
At Pre-STOP signal input
At Interlock signal input
At Completion of the digital control with a multiplier
At Completion of batch control (with the EFS flow sensor)
When a measured flow is out of allowable range in the ANA.V or PLS
control with the EFS flow sensor (FL.ER: Out of measurement alarm):
This alarm output will be stopped when the EFS measured flow returns to the
allowable range (operation sustained) or when the start/stop key is pushed
once (operation suspended).
1 2 3 4 5 1 2 3
Pulse signal input
Pump operation
Operational function

28 Operational function
Condition:
SP1 = 20mL/min at 4mA
SP2 = 40mL/min at 20mA
Allowable range = 4.0mL/min
Delay time = 0 sec
When a flow falls below the preset minimum rate in operation with the
EFS flow sensor (F.CHK: Poor flow alarm):
The error message of "FLOW" will appear on the pump display. It is can-
celled when the start/stop key is pushed once (operation suspended).
*Do not set the minimum rate at or above the target flow rate.
Condition:
Target rate = 20mL/min
Preset min rate = 10mL/min
Alarm delay time = 5 minute
■ OUT2 (photoMOS relay)
The pump transmits the no voltage contact signal:
In synchronous with pump shots
In synchronous with signal input from the EFS flow sensor
*The OUT1 functions can also be set to the OUT2.
■ Analogue output
The pump outputs a current value of 4-20mA in proportion to a flow/stroke rate.
±4.0mL/min
40mL/min
20mL/min
20mA
4mA
0
SP.1
SP.2
20mL/min
10mL/min
0
Measured
flow
Detection
Minimum
rate
Alarm delay time
Alarm
output

29
Overview
Control with external devices
Combination with the EFS flow sensor
The combination of the EFS flow sensor (purchase separately) and the EWN-
B11Y/-B16Y/-B21Y/-C16Y enables feedback control. Digital control with a multi-
plier and a divisor is not enabled while the EFS sensor is connected.
Observe the following points.
• Use care handling the flow sensor. Do not drop or hit. An impact may af-
fect sensor performance.
• Do not modify the flow sensor. Alterations to the flow sensor carries a high
degree of risk. It is not the manufacturer's responsibility for any failure or
injury resulting from alterations to the flow sensor.
• Use liquid conductivity of 1000mS/m or more.
• The use of the flow sensor in any conditions other than those clearly
specified may result in failure or injury. Use this product in specified condi-
tions only.
• Do not install/store the sensor in a flammable atmosphere.
• Do not use a corrosive solution.
• Use measures to keep the flow sensor connections free from stress.
Weight and thermal expansion/contraction of the piping can stress con-
nection points.
• Non-freezing. Do not allow liquid temperature to fall below its freezing
point.
• The flow sensor does not work for 20 seconds after power-on. Avoid on-
off operation by powering on/off the pump.
• Do not expose the sensor to direct sunlight or heat.
• Malfunction may result. Do not close the sensor to a strong magnet or use
in a magnetic field.
• It takes about 30 minutes after the start of the pump for a dry EFS to get
ready for measurement. An accurate flow can not be obtained during this
time period (running-in period).
• Rinse the flow path with tap water to clean electrode as necessary.

30
Iwaki EFS-05-FT/-FH Electromagnetic Flow Sensor
■ Feedback control (see page 99)
In the feed back control with the EFS sensor, the pump automatically controls
the stroke rate to meet the target flow rate. Call up the manual mode (the pump
stops) and use the DISP key to select the "GPH", "L/h" or "mL/m" flow unit.
Set a target rate and then push the start/stop key. The feedback control will be
started based on the actual flow measured by the EFS sensor.
*The pump controls a stroke rate in the range of 0-360(240/180)spm. The flow rate
changes with a stroke rate and discharge pressure.
DIN cable
OUT
IN
Under feedback control
1.0MPa
0
Target rate
No feedback control
Flow rate
Pressure

31
Overview
■ Batch control (see page 100)
When the EFS sensor is used with the pump, the batch control becomes avail-
able. In the batch control, the pump runs until the set volume per pulse that is
monitored by the EFS is completed and stops afterwards. The batch volume
shown on the pump screen is getting lower as feeding advances.
*In the batch control, the pump runs at the MAN speed.
*If the EXT key is pushed or the batch S/S signal is entered before the pump has com-
pleted feeding, the batch volume returns to the origin.
START/STOP by the EXT
key or Batch S/S signal
STOP signal
Set volume
RUN
STOP
Pump operation
Completion alarm of
batch control
STOP (set volume is reset.)
RUN RUN

32
Pulse signal
Set volume
(Buffer OFF)
Set volume
(Buffer ON)
When "bF-ON (buffer ON)" is selected:
A set volume doubles in dosing if the pump receives an external pulse signal
via the analogue/pulse input terminal or the INPUT terminal (see page 50 for
their wiring diagrams.). Either terminal can be used, however, when using the
INPUT terminal, choose the "INPUT", "INP.T" and then "PULS" options in the
user mode.

33
Overview
Combination with the FCP and FCM flow checker/counter
The FCP-1 VC/VE/PC/PE flow counter and the FCM-VC-1/-2 or FCM-VH-1/-2
flow checker detect each pulsation flow from the pump and feed back pulse
signals to the pump. The pump recognizes upset conditions when the feedback
signals does not match the number of pump shots. The following four behav-
ioural patterns are available.
■ A. MODE
The pump stops running and outputs an alarm via the OUT1 terminal with
the "FLOW" and "Err" displays on the pump screen when the pump does not
receive a feedback signal from the FCP/FCM for the set number of shots. Push
the start/stop key to release this error condition.
*FC.MUM: Number of dry shots user settable in the user mode
When the FC.MUM is set to 10:
10
9
8
7
6
5
4
3
2
1
STOP
Feedback signal
OUT1
Pump operation

34
■ B. MODE
The pump outputs an alarm via the OUT1 terminal, keeping its operation, when
the pump does not receive a feedback signal from the FCP/FCM for the 1st set
number of shots (FC.MUM: Number of dry shots). The pump stops running with
the "FLOW" and "Err" displays on the pump screen when the pump continues
not receiving a further signal for the 2nd set number of shots (FC.POF: Dry
shots to pump off). Push the start/stop key to release this error condition.
When the FC.MUM is set to 10 and the FC.POF to 30:
<No feedback signal recovery>
The pump stops running when not receiving a feedback signal for further 30
shots (FC.POF) after 10 dry shots (FC.MUM) has been made.
<Feedback signal recovery>
The pump keeps running when receiving a feedback signal within 30 shots
(FC.POF) after 10 dry shots (FC.MUM) has been made.
10 +30 +31
+1 +2 +3
STOP
Feedback signal
OUT1
Pump operation
10 +30 +31
+1 +2 +3
Feedback signal
OUT1
Pump operation

35
Overview
■ C. MODE
The pump stops running with the "FLOW" and "Err" displays on the pump
screen, outputting an alarm via the OUT1 terminal when not receiving a feed-
back signal from the FCP/FCM for the set number of dry shots (FC.MUM:
Number of dry shots) plus the set number of shots (FC.POF: Dry shots to pump
off).
Push the start/stop key to release this error condition.
When the FC.MUM is set to 10 and FC.POF to 30:
10 +30 +31
+1 +2 +3
STOP
Feedback signal
OUT1
Pump operation

36
■ D. MODE
The pump continues running at a MAN speed for the 1st set time (FC.TIM: De-
tection time) and then a maximum speed for the 2nd set time (FC.PRM: Prim-
ing time). The pump stops running with the "FLOW" and "Err" displays on the
pump screen, outputting an alarm via the OUT1 terminal when not receiving a
feedback signal from the FCP/FCM over the return time (FC.RTN: Return time).
The pump speed return to the MAN speed after the Priming time if it receives a
signal over the return time.
When the FC.TIM is set to 2min, FC.PRM to 5min and FC.RTN to 30sec:
<No feedback signal recovery>
<Feedback signal recovery>
STOP
Feedback signal
OUT1
Pump operation
FC.PRM
FC.TIM
Feedback signal
OUT1
Pump operation
FC.PRM
FC.TIM
FC.RTN

37
Overview
Part names
Pump
Control unit
Used for the start/stop of
the pump and stroke rate
adjustment/setting.
Air vent port
Always connect a tube. Be sure
to return the tube end to a sup-
ply tank or a container.
The air vent port can rotate 90
degrees.
Adjusting screw
Used for opening the air vent port.
Nameplate
Describes the pump
specifications.
Base
Always fix with bolts.
Pump head
Inlet
Outlet
Air vent body
Part names

38
Operational panel
Part names
DOWN key
Used for decreasing numeric val-
ues or selecting a setting mode.
UP key
Used for increasing numeric val-
ues or selecting a setting mode.
Display
An operational status, a
selected mode and a set value
are shown here.
START/STOP key
Used for starting/stopping
operation or entering a setting.
EXT key
Used for entering the EXT mode.
DISP key
Used for changing units.
ON LED
Lights orange as turning on power.
The LED lights green and flashes
at each stroke.
OUT LED
Lights red as the pump outputs the
signal.
STOP LED
Lights red as the pump stops running by
the STOP signal.
Lights orange as the pump keeps running
while receiving the Pre-STOP signal.
Stroke length knob
Determines liquid volume per shot.

39
Overview
Part names
■ Basic displays & Pump states
STOP LED
lights green
ON LED lights
orange
ON LED blinks
green
OUT LED lights
red
―
Manual wait
state.
―
OUT1 & 2 acti-
vate as preset.
― ―
The pump
is running in
manual mode.
OUT1 & 2 acti-
vate as preset.
― ―
The pump is
running at the
displayed flow
rate.
OUT1 & 2 acti-
vate as preset.
Operation
stop by the
STOP signal.
― ― ―
―
EXT mode
setting in the
user mode.
― ―
―
The pump is
in an error
condition
― ―
*The backlit LCD stops lightening 1 minutes after the last key operation.
Units
Calibration mode
Operation setting
Measured flow display by the
EFS flow sensor
Error condition
Keypad lock
Pulse reception from the FCP/
FCM or calibration mode
Operation mode
A buffer stores excessive signals.
Main character field
Setting layer 1/2 and OUT1/2

40
Identification codes
The model codes of the pump/drive units and the control unit represent the fol-
lowing information.
Pump/Drive units
EWN - B 11 VC U Y -
a b c d e f g h i
a. Series name
EWN: Multivoltage electromagnetic metering pump
b. Drive unit (average power consumption)
B: 20W C: 24W
c. Diaphragm effective diameter
09: 8mm 11: 10mm 16: 15mm
21: 20mm 31: 30mm 36: 35mm
d. Wet end materials
Code Pump head Valve O ring Valve seat Gasket Diaphragm
VC
PVC
CE FKM FKM
PTFE
PTFE
+ EPDM
(dry end)
VH HC276
EPDM EPDM
VE
CE
PC
GFRPP
FKM FKM
PH HC276
EPDM EPDM
PE
CE
TC
PVDF
FKM FKM
FC ― PCTFE
SH SUS316 HC276 ― SUS316
P6-V GFRPP SUS316 EPDM PCTFE
Automatic air vent (auto degassing type)
Code
Air vent valve
guide A
Air vent valve
guide B
Valve Separate pin Valve seat O ring
VC
PVC PVC
Zirconia
ceramic
Titanium FKM FKM
VH HC276 HC276 EPDM EPDM
Material code
PVC : Transparent polyvinyl chloride GFRPP : Glassfiber-reinforced polypropylene
PVDF : Polyvinylidene difluoride EPDM : Ethylene-propylene rubber
FKM : Fluorine-contained rubber PTFE : Polytetrafluoroethylene
HC276 : HASTELLOY C276 SUS316 : Austenite stainless steel
CE : Alumina ceramic PCTFE : Polymonochlorotrifluoroethyle

41
Overview
e. Tube size
No. Tube ID×OD Wet end materials Pump model
No
code*¹
ø1/4"×ø3/8"
VC/VH/VE/PC/PH/PE/TC/
VC-C/VH-C/VE-C/VC-A/VH-A
EWN-09/-11/-16/-21
ø3/8"×ø1/2" VC/VH/VE/PC/PH/PE/TC EWN-31/-36
1/4-18NPT FC/SH/SH-H EWN-11/-16/-21/-31/-36
IN/AIR: ø1/4"×ø3/8"
OUT: 1/4×18NPT
PC-H/PH-H/PE-H EWN-11/-16
IN: ø15×ø22
OUT: ø3/8"×ø1/2"
P6-V EWN-31
1 ø4×ø9
VC/VH/VE/PC/PH/PE/
EWN-09/-11/-16/-21
2 ø4×ø6
EWN-09/-11/-16/-21
3 ø6×ø8
EWN-09/-11/-16/-21
4 ø8×ø13 VC/VH/VE/PC/PH/PE EWN-31/-36
5 ø9×ø12 VC/VH/VE/PC/PH/PE EWN-31/-36
6 ø10×ø12 VC/VH/VE/PC/PH/PE/TC EWN-31/-36
23 ø6×ø12 VC/VC-C EWN-09/-11/-16/-21
24 ø5×ø8 VC/TC/VC-C EWN-09/-11/-16/-21
1/10
IN: ø4×ø9
OUT: 1/4-18NPT
2/10
IN: ø4×ø6
OUT: 1/4-18NPT
3/10
IN: ø6×ø8
OUT: 1/4-18NPT
*The VC/VH-C wet ends are available only for the EWN-09 type.
f. Power cable
U: American 115VAC type U2: American 230VAC type
g. Control unit function
Y: High functional
h. Special version
C: High compression type H: High pressure type
V: High viscosity type A: Auto degassing type
i. Special configuration

42
This section describes the installation of the pump, tubing and
wiring. Read through this section before work.
Observe the following points when installing the pump.
• Risk of electrical shock. Be sure to turn off power to stop the pump and
related devices before service is performed.
• If you notice any abnormal or dangerous conditions, suspend operation
immediately and inspect/solve problems.
• Do not place explosive or flammable material near the pump.
• Do not use a damaged pump. Use of a damaged pump could lead to an
electric shock or death.
• If the EFS flow sensor is needed, first mount the sensor before plumbing
the pump. Use supports to hold plumbing and the pump as necessary.
Pump mounting
Select an installation location and mount the pump.
Necessary tools
• Four M5 bolts (pump mounting)
• Adjustable wrench or spanner
Select a suitable place.
Always select a flat floor free of vibration. See page 14 for detail.
Flooded suction is recommended when handling a gaseous liquid such
as sodium hypochlorite.
Anchor the pump with the M5 bolts.
Be sure to fix the pump at four points.
NOTE
Select a level location. If the pump is not installed level,
output may be affected.
1
2
Pump mounting
Installation

43
Installation
Plumbing
Tube
Fitting nut
Fitting
Stopper
Adapter
a b
Plumbing
Connect tubes to the pump and install a check valve.
Before operation
• Cut the tube ends flat.
Necessary tools
• An adjustable wrench or a spanner
Tube connection
a. Pass a tube into the fitting nut and
stopper and then slide it down to the
adapter as far as it will go.
b. Put the tube end (adapter) in the fit-
ting. Then hand tighten the fitting nut.
c. Retighten the fitting nut by turning it
further 180 degrees with an adjust-
able wrench or spanner (crush tube
mount).
*Do not use excessive force to the plastic fitting nut.
*In your try to remove the connection, the adapter may be stuck in the crushed
tube and the stopper. Try not to damage the taper of the adapter that is crush-
ing the tube against the stopper. If it has been damaged, contact us for the new
adapter/stopper.
*Do not reuse the same tube end for the crush sealing. Cut it off for ensuring
the new seal is established.
Tube end (side view)

44
Connect tubes into the inlet and
outlet.
Connect an air bleed tube into the
air vent port.
Route back the other tube end to a
supply tank or a container.
Determine an air vent port direction.
The air vent port can rotate 90 de-
grees.
a. Turn the lock nut anticlockwise.
b. Adjust the direction of the air vent
port.
c. Hand-tighten the lock nut, holding
the air vent body A.
d. Turn the lock nut 90 degrees
clockwise further with an adjustable
wrench or spanner.
Tube
Tube
Outlet
Inlet
1
Plumbing
2
3 Air vent port
Lock nut
Air vent body A
Air bleed tube
Air vent port

45
Installation
Check valve mounting
Install an optional check valve to the EWN for the prevention of a back flow, si-
phon and overfeeding. In the following cases be sure to install the check valve.
• A suction side liquid level is higher than a discharge side or an injection point
at atmospheric pressure.
• A discharge side liquid level is higher than a suction side but the distance is
5m or below.
• A suction line pressure is higher than a discharge line pressure.
• A discharge pressure (including pipe resistance and discharge head) is below
0.13MPa. (below 0.049MPa for B31 and C36).
Plumbing
Suction side
Discharge side
Check valve
Suction side
Discharge side
5morbelow
Check valve
Check valve

46
Mount a check valve at the discharge tube end.
*The CAN check valve has R1/2 and R3/8 thread connections as well as an
O.D. 9 mm tube connection. Cut off an unused part and adjust the connection
length as necessary.
CAN check valve
*The CBN check valve (both ends tube connections) is optionally available.
Contact us or your nearest distributor.
CBN check valve
NOTE
• Periodically clean or replace a check valve with new one for the prevention of crystal
clogging, especially when using sodium hypochlorite.
• In the nature of the pump, the lower discharge pressure, the higher discharge capacity
(and vice versa). If you want to observe the max discharge capacity at any low level of
system (/discharge) pressure, use the check/back pressure valve to give the additional
pressure of 0.17MPa±0.04 to the discharge line or reduce the pump speed/stroke length.
Tubing layout
Flooded suction application Suction lift application
NOTE
• Flooded suction installation is strongly recommended when handling liquids that gen-
erate gas bubbles (sodium hypochlorite or hydrazine solution).
• Install a relief valve on a discharge line near the pump so as to release the discharge
pressure when it exceeds the maximum level.
1
Plumbing
Check valve
Accumulator/Chamber
Pump
Pump
Accumulator/Chamber
Air vent line
Air vent line
Check valve
Relief valve
Relief valve
O.D.9mm
R1/2
R3/8

47
Installation
Wiring (pump)
Wiring for a power voltage and an external signal.
Observe the following points during wiring work.
• Electrical work should be performed by a qualified electrician. Always
observe applicable codes or regulations.
• Observe the rated voltage range, or the electrical circuit in the control
unit may fail.
• Risk of electrical shock. Be sure to turn off power to stop the pump and
related devices before service is performed.
• Replacement of a power cable should be conducted by a manufacturer,
his agency or a skilled person. Otherwise, an accident may result.
Necessary tools
• Adjustable wrench or spanner • Phillips screw driver
• Precision screw driver • Flathead screw driver
Wiring (pump)

48
End terminals
See the following diagram for detail.
Power voltage/Earthing
Points to be checked
• Check that the main power is turned off.
Connect the power cable to the 100-240VAC power source.
This product have two power wires and one earth wire, and is classified
as class Ι.
*Make sure the earth plug is seated securely as well.
1
Input terminal
STOP terminal
Output terminal
Sensor signal
Wiring (pump)

49
Installation
Wiring (pump)
NOTE
• Do not share a power source with a high power device which may generate surge
voltage. Otherwise an electronic circuit may fail. The noise caused by an inverter also
affects the circuit.
• Energize the pump with a power voltage via a mechanical relay or switch. Do not
fluctuate the voltage, or CPU may malfunction. See page 50 for the precautions for
ON-OFF control by a mechanical relay.
Apply power sharply Do not apply gradually
Surge voltage
The electronic circuit in the control unit may fail due to surge voltage. Do
not place the pump close to a high power device of 200V or more which
may generate large surge voltage. Otherwise, take any of the following
measures.
• Install a surge absorption element (ex. a varister with capacity of 2000A
or more) via power cable.
Recommended varisters
Panasonic ERZV14D431
KOA NVD14UCD430
See manufacturer's catalogues for detail.
• Install a noise cut transformer via power cable.
POWER
ON
OFF
TIME
POWER
ON
OFF
TIME
Surge absorption element
Noise cut transformer

50
Precautions for ON-OFF control by a mechanical relay
The pump is equipped with a CPU. To ensure the CPU to work properly,
always start/stop the pump by the STOP signal for ON-OFF control. Try
not to turn on and off the main power. Otherwise, observe the following
points:
• Ensure the minimum OFF time of 10 minutes.
• The contact capacity of a mechanical relay should be 5A or more. Or a
contact point may break.
• If the contact capacity of a mechanical relay is 5A, the maximum allow-
able number of times the power is turned ON/OFF is limited to 150,000.
Use the contact capacity of 10A or more when the actual number of
times is over 150,000 or when sharing a power source with a large
capacity equipment which may cause a surge voltage and damage a
contact point.
• Use a solid state relay (SSR) as necessary (such as the OMRON G3F).
See manufacturer's catalogues for detail.
• The EFS does not work for 20 seconds after power-on. Do not cycle the
pump power for ensuring proper EFS operation.
Signal wire connection
Use the DIN 4- or 5-pin female connector cable. We recommend the use of
Binder connector cables (German manufacturer). Contact us for detail.
Binder connector cables
5-pin : 713 series 99-0436-10-05 Input signal
4-pin : 715 series 99-0430-15-04 STOP signal
5-pin : 715 series 99-0436-15-05 Sensor signal
Hirschmann square connector cables
4-pin : GDS307 Output signal
• Check that the main power is turned off.
Wiring (pump)

51
Installation
Wiring (pump)
NOTE
• Do not lay on these signal cables in parallel with a power cable. Otherwise the elec-
tromagnetic induction noise is generated and malfunction or failure may result.
• The following products are the recommended SSRs (Solid State Relays) for signal
input. Any other SSRs may cause malfunction. See manufacturer's information for
details on these SSRs.
–OMRON G3FD-102S or G3FD-102SN
–OMRON G3TA-IDZR02S or G3TA-IDZR02SM
• When using a mechanical relay for signal input, its minimum application load should
be 1mA or below.
• Insert the DIN connector as far as it will go and then rotate the outer ring to fix it.
• Use either a no-voltage contact or an open collector for the STOP and Input signals.
■ STOP signal
Connect signal wires to the STOP terminal via a DIN 4-pin connector.
• When using an open collector:
Pay attention to polarity. Pre-STOP and STOP are plus(+), and COM is minus(-).
• When using a contact:
The contact must be designed for an electronic circuit. The minimum application load
should be 1mA or less.
1 : STOP (Brown)
2 : Pre-STOP (White)
3 : COM (Blue)
4 : COM (Black)
*Each terminal is coloured as
above for our optional cable.
NOTE
Our 5m cable is 5-wire. Cut off a green wire to use it with the DIN 4-pin connector.
Wiring for
STOP function
3
2
4
1
3
2
4
1
Wiring for
Pre-STOP function

52 Wiring (pump)
■ Input signal
Connect signal wires to the input terminal via a DIN 5-pin connector for digital/
analogue-proportional control, interlock/AUX input or analogue signal output.
• When using an open collector:
Pay attention to polarity. PIN 1 and PIN 3 are plus(+), and PIN 4 is minus(-).
• When using a contact:
The contact should be designed for an electronic circuit. The minimum application
load should be 1mA or less.
1 : Analogue/Pulse input (Brown)
2 : Analogue out (-) (White)
3 : Pulse, Interlock, AUX, Batch
Start/Stop input (Blue)
4 : COM (Black)
5 : Analogue out (+) (Green)
NOTE
If electric terminals of an external electrical component share a common (ground) line,
the analogue out minus pin 2 and the common pin 4 of the input terminal cannot be
used at the same time unless a measure is taken.
When using the Analogue/Pulse input function or the INPUT function which uses the
pin 4 together with the Analogue out function which uses the pin 2, an isolator must be
installed in either signal line of those functions.
■ Output signal
Connect signal wires to the OUT terminal via a DIN 4-pin connector.
• OUT1<Mechanical relay>: Alarm output
*The "1.STOP(STOP alarm)" is enabled with the factory default settings.
• OUT2<PhotoMOS relay>: Alarm output or Synchronous output (sensor/pump).
*The "OFF" is selected to the OUT 2 terminal with the factory default settings.
1 : OUT1 (White)
2 : OUT1 (Brown)
3 : OUT2 (Black)
4 : OUT2 (Blue)
3
4
1
2
Wiring for
Analogue/Pulse input
Wiring for
INPUT
3
2
4
5 1
3
2
4
5 1
3
2
4
5 1
Wiring for
Analogue out
Output terminal
Gasket
M3 screw
Output signal cable

53
Installation
Wiring (external devices)
EFS flow sensor mounting (purchase separately)
Observe the following points
• Mount the EFS flow sensor before anchoring/plumbing the pump.
• Be sure to to power off the pump before connecting the DIN cable.
• Use care handling the EFS flow sensor. Do not drop or hit. An impact may
affect performance.
Necessary tools
• Adjustable wrench or spanner
Turn the lock nut anticlockwise by
an adjustable wrench and remove
1 Lock nut
Air vent
body A

54 Wiring (external devices)
Mount the EFS flow sensor.
a. Hand-tighten the lock nut, holding
the flow sensor.
b. Turn the lock nut 90 degrees
wrench or spanner.
NOTE
• Foreign matters and a nonconductive liquid prevent the EFS from monitoring a
flow rate. Be sure to remove these factors before mounting the EFS.
• Fasten the EFS onto the outlet of the pump head to 3.43N•m. Excessive tight-
ening torque may break a connection. Clean a sealing surface and replace an
O ring as necessary.
Mount the air vent body A.
a. Hand-tighten the lock nut, holding
b. Turn the lock nut 90 degrees
wrench or spanner.
Lock nut
Air vent body A
2
3
Lock nut
EFS flow sensor

55
Installation
Connect the sensor cable to the sensor signal terminal.
NOTE
• Connect the sensor cable to the pump after mounting the EFS flow sensor, Or
the cable may be damaged.
• Do not pull the sensor cable.
• Do not disassemble or alter the DIN 5-pin connector, or the EFS flow sensor
may break.
• Insert the DIN 5-pin connector as far as it will go and then rotate the outer ring
to fix it.
• Do not connect the sensor cable to the pump while wet with solution or water.
• Turn on the pump with the EFS flow sensor and check if "EFS.." shows up on
the screen for 20 seconds. If not turn off power once and reconnect the flow
sensor.
4
LOCK
Sensor input terminal
Sensor cable
EFS flow sensor

56
FCP/FCM mounting (purchase separately)
See each instruction manual of the FCP flow counter and FCM flow checker
for detail.
■ Flow counter (FCP)
Remove the adjusting screw and
install the FCP flow counter instead.
■ Flow checker (FCM)
Remove the fitting and take out the
valve set from the pump head.
Place the valve set into the air vent
body B and tighten it into the pump
head to 3.5N•m through the Lock
nut.
NOTE
Note the air vent valve set has a mounting
direction.
1
2
Valve set
Fitting
Air vent body B
Lock nut
Valve set
1 Flow counter

57
Installation
Connect the flow checker body and
the pump head with the Lock nut.
Turn the Lock nut anticlockwise to
tighten them. Take care not to drop
the Plate, O ring or Float. Note that
the Float has a mounting direction.
Install the float into the body with a
red-marked face upwards.
■ FCP/FCM wiring
Connect the lead wire of the FCP/FCM to the DIN 5-pin connector as
shown below.
1 : Sensor signal input
2 : 24VDC power voltage
3 : Free
4 : COM
5 : Free
Fit the connector to the sensor signal terminal.
3
2
4
1
FCP
or
FCM
24VDC power voltage
Sensor signal input
COM
Plate
Float
O ring Red mark
Flow checker
body
LOCK
Sensor signal input
3
1
2

58
This section describes pump operation and setting.
Run the pump after pipework and wiring is completed.
Before operation
Check a flow rate, tubing and wiring. And then perform degassing and flow rate
adjustment before starting operation.
Before operation, check if:
• Liquid level in a supply tank is enough.
• Tubing is securely connected and is free from leakage and clogging.
• Discharge/suction valves are opened.
• A power voltage is in the allowable range.
• Electrical wiring is correct and is free from the risk of short circuit and electri-
cal leakage.
Retightening of pump head fixing bolts
Important
The pump head fixing bolts may loosen when plastic parts creep due to tem-
perature change in storage or in transit, and this can lead to leakage. Be sure
to retighten the bolts evenly to the specified tightening torque below in diagonal
order before starting operation.
Tightening torque
Model code Torque Bolts
EWN-B09/-B11/-B16/-B21 19 lb-in M4 Hex. socket head bolt
EWN-B31 22.6 lb-in M4 Hex. socket head bolt
EWN-C16/-C21 19 lb-in M4 Hex. socket head bolt
EWN-C31 22.6 lb-in M4 Hex. socket head bolt
EWN-C36 22.6 lb-in M5 Hex. socket head bolt
*Tighten fixing bolts once every three months.
Before operation
Operation

59
Operation
■ Use of hexagon wrench instead of a torque wrench
Fasten the fixing bolts as tight as can be by the hand with the straight long part
of a hexagon wrench (a) and further turn the bolts clockwise 90 degrees with
the short part (b).
Stroke rate adjustment
A stroke rate increases/decreases as pushing the UP/DOWN keys. Press and
hold either key for three seconds for quick change. Quick change stops at the
top or bottom rate. The top(/bottom) rate skips to the bottom(/top) when the key
is released and pushed once.
Straight long
part
Short part
a b
90°
Before operation

60
Degassing
The gas needs to be expelled from the pump and tubing by degassing. Normal
performance can not be obtained with gas in the pump. Conduct degassing in
the following cases.
• When the pump starts to run for the first time
• When a flow rate is too low
• After liquid is replaced in a supply tank
• After a long period of stoppage
• After maintenance and inspection
NOTE
• Both gas and chemical come out together through an air bleed tube. Place the end of
the tube in a supply tank or a container.
• Some chemicals may cause skin trouble or damage component parts. When your
hand or component parts get wet with chemical liquid, wipe off immediately.
• An air bleed tube is connected to the pump.
■ EWN VC/VH/PC/PH/TC/PP/SH
Turn on power.
The ON LED lights and a display re-
lated to the current mode appears on
the screen.
*The pump waits in the MAN mode when
the power is turned ON with a default
setting or calls up the last selected mode
with other settings.
*A push of any keypad lightens the backlit
LCD. The LCD stops lightening 1 minutes
after the last key operation.
Air bleed tube
ON LED
1
Before operation

61
Operation
Run the pump at the maximum stroke rate.
Select a convenient way from the following.
• Set a stroke rate to the top and push the start/stop key.
*Push the start/stop key to return to the MAN mode from the EXT mode as
necessary.
*A flow rate accompanied with "GPH", "L/h" or "mL/m" unit is a target flow rate
of the feedback control with the EFS flow sensor. Change those units to "%" or
"spm" before the MAN operation.
• Enter the external signal via the AUX terminals. See page 27.
• Press and hold both the UP and DOWN keys.
Rotate the adjusting screw two revolutions
anticlockwise to open the air vent port.
*Do not rotate it three revolutions. Otherwise,
the adjusting screw may come off with solution
spray.
+
Adjusting screw
3
2
AUX signal
input
Before operation

62 Before operation
Keep the pump running for more than ten minutes for degassing.
Stop the pump by:
• pushing the start/stop key once or
• stopping the AUX signal or
• releasing the UP and DOWN keys
Rotate the adjusting screw clockwise to close the air vent port.
Check liquid is delivered to the discharge line.
*Degassing is required again if the pump does not discharge liquid.
Check connections for leakage.
Degassing has now been completed.
■ EWN FC/P6-V
Install an air vent valve on a discharge line for degassing. Follow the procedure
below to conduct degassing if the air vent valve is not available.
Connect a discharge tube and route back the other tube end to a
supply tank or a container.
*Remove the check valve from the discharge tube if it is installed.
*After liquid replacement in a supply tank or a long period of stoppage, an
internal pressure may remain in the pump or tubing. Removing the check valve
at this state, liquid may gush out. Wrap a waste cloth around the check valve
connection for the prevention of gushing.
Turn on power.
The ON LED lights and a display related to the current mode appears on
the screen.
6
4
5
7
8
2
1

63
Operation
Before operation
Run the pump at the maximum stroke rate.
Select a convenient way from the following.
• Set a stroke rate to the top and push the start/stop key.
• Enter the external signal via the AUX terminals.
• Press and hold both the UP and DOWN keys.
Keep the pump running for more than ten minutes for degassing.
Stop the pump by:
• pushing the start/stop key once or
• stopping the AUX signal or
• releasing the UP and DOWN keys
Check liquid is delivered to the discharge line.
*Degassing is required again if the pump does not discharge liquid.
Check connections for leakage.
Degassing has now been completed.
6
4
5
7
3

64
5
1
2
4
3
Before operation
Flow rate adjustment
A flow rate can be adjusted by adjusting a stroke rate and stroke length.
The stroke rate is indicated in spm or %. 100% stroke rate means the maxi-
mum spm. Stroke rate adjustment is a main way to adjust a flow rate.
Stroke length is the moving distance of the plunger.
A liquid volume per shot can be controlled by changing stroke length. The wid-
est moving distance is defined as 100% stroke length.
First adjust a flow rate by stroke rate adjustment. Use stroke length adjustment
for the range where stroke rate adjustment can not reach.
Determine a suitable stroke rate and a stroke length, taking account of operat-
ing conditions and liquid characteristics.
The following procedure is recommended.
Change a stroke rate with stroke length 100% to adjust a flow rate.
See the "Stroke rate adjustment" section (page 65) and the "Stroke
length adjustment" section (page 66) for detail.
Measure a flow rate.
If a flow rate is lower than a specified level, increase a stroke rate
and measure the flow again.
Change a stroke length for fine adjustment.
Measure the flow again to see the specified level is obtained.

65
Operation
Flow rate, stroke rate and stroke length
Precautions of flow rate adjustment
• When back pressure is high
Set stroke length to 100% and adjust a flow by changing a stroke rate.
• When a flow rate per shot greatly influences the reaction in neutraliza-
tion or titration application
Shorten a stroke length to reduce a flow rate per shot. And then adjust a flow
by changing a stroke rate.
• When pumping gaseous liquid such as sodium hypochlorite (NaClO)
and hydrazine solution (N2H2O2)
Set a stroke length to 100% and adjust a flow by changing stroke rate.
Note air lock may occur when stroke length is set too short.
■ Stroke rate adjustment
A stroke rate can be set by keypad operation from 0.1 to 100%. The relation
between a flow rate* and a stroke rate is shown as below.
Turn on power and call up manual mode.
Enter manual mode to indicate a stroke rate on the screen.
• Push the start/stop key when the pump is in the EXT mode.
• When the "STOP" or "-STOP" display appears on the screen, see
page 92 and 93 to release the condition.
B type C type
Fixed stroke rate
100
%
75
50
25
0
25 50 75 100
%
Discharge
capacity
Stroke length adjustment
Stroke rate is fixed at 100%
Fixed stroke rate
100
%
75
50
25
0
25 50 75 100
%
Discharge
capacity
Stroke length adjustment
Before operation
*The flow rate described on the
nameplate is at 100%.
Fixed stroke length
100
%
75
50
25
0 50 100
%
Discharge
capacity
Stroke rate adjustment
1

66
Use the UP or DOWN key to adjust a stroke rate.
Push the start/stop key.
The ON LED blinks at each shot during operation.
■ Stroke length adjustment
A stroke length can be adjusted when the moving dis-
tance of the plunger is changed by the stroke length
knob.
The stroke length adjustment range is 50-100% for
the B type, 40-100% for C type. The relation between
a flow rate* and a stroke length is shown right.
NOTE
Do not rotate the stroke length knob when the pump is not running.
Turn on power and push the start/stop key to run the pump.
The ON LED blinks during operation.
2
3
Before operation
1

67
Operation
Rotate the stroke length knob to deter-
mine liquid volume per shot.
■ Flow calibration
Entering liquid volume per shot, operation can be monitored in GPH, L/h or mL/m.
Press and hold the DISP key for 3 seconds to move from the wait
state to the calibration mode.
The screen shows "TEST".
Run the pump.
Use a calibration cylinder to collect liquid. The pump runs for 10 sec-
onds.
Before operation
Stroke length knob
2
3 sec
2
1

68 Before operation
Enter the collected liquid volume.
Use the UP and DOWN keys to adjust a value and the DISP key shift to
the next digit. Push the start/stop key to enter the value.
*Pushing the EXT key, the setting is cancelled.
Before a long period of stoppage (one month or more)
Clean wet ends and the inside of tubing.
• Run the pump with clean water for about 30 minutes to rinse chemicals off.
Before unplugging the pump
• Always stop the pump by key operation and wait for three seconds before
unplugging the pump. Otherwise, the last key operation may not be put in
memory. In this case the pump unintentionally starts to run as powered on,
discharging liquid.
When the pump does not transfer liquid at resuming operation.
• Clean the valve sets and remove foreign matters.
• If gas is in the pump head, expel gas and readjust a flow rate. See the "De-
gassing" section on page 60.
3

69
Operation
Operation programming
Operation at each mode is individually set and controlled by keypad operation.
Select a proper mode to make optimal operation.
Default setting and setting range
Parameters Setting ranges STEP*1
Default
Flow unit selection %, spm, GPH, L/h, mL/m - %
Stroke rate
% 0.1 - 100.0% 0.1 100.0
spm 1 - 360 spm 1 360
GPH 0.001 - 15.828(GPH) 0.001 0.317
L/h 0.001 - 59.994(L/h) 0.001 1.200
mL/m 0.1 - 999.9(mL/m) 0.1 20.0
EXT
mode
selec-
tion
DIV n/1 - n/9999 1 n/1
MULT
%, spm ×1 - ×9999(%, spm) 1 ×1
GPH 0.001 - 99.999(GPH) - 0.000 GPH
L/h 0.001 - 99.999(L/h) - 0.000 L/h
mL/m 0.001 - 999.9(mL/m) - 0.0 mL/m
ANA.R 4-20, 20-4, 0-20, 20-0 - 4-20
ANA.V
SP1 mA 0.0 - 20.0 mA 0.1 0.0 mA
SP1 spm
% 0.0 - 100.0% 0.1% 0.0%
spm 0 - 360 spm 1 spm 0 spm
GPH 0.000 - 15.828(GPH) 0.001 0.000 GPH
L/h 0.000 - 59.994(L/h) 0.001 0.000 L/h
mL/m 0.0 - 999.9(mL/m) 0.1 000.0 mL/m
SP2 mA 0.0 - 20.0 mA 0.1 20.0 mA
SP2 spm
% 0.0 - 100.0% 0.1% 100.0%
GPH 0.000 - 15.828(GPH) 0.001 0.600 GPH
L/h 0.000 - 59.994(L/h) 0.001 2.268 L/h
mL/m 0.0 - 999.9(mL/m) 0.1 38.0 mL/m
PLS
SP1 Hz 0.0 - 500.0 Hz 0.1 0.0 Hz
SP1 spm
% 0.0 - 100.0% 0.1% 0.0%
GPH 0.000 - 15.828(GPH) 0.001 0.000 GPH
L/h 0.000 - 59.994(L/h) 0.001 0.000 L/h
mL/m 0.0 - 999.9(mL/m) 0.1 000.0 mL/m
SP2 Hz 0.0 - 500.0 Hz 0.1 500.0 Hz
SP2 spm
% 0.0 - 100.0% 0.1% 100.0%
GPH 0.000 - 15.828(GPH) 0.001 0.600 GPH
L/h 0.000 - 59.994(L/h) 0.001 2.268 L/h
mL/m 0.0 - 999.9(mL/m) 0.1 38.0 mL/m
BATCH
GPH 0.001 - 26.385(GPH) 0.001 0.026(G)
L/h 0.001 - 99.999(L/h) 0.001 0.100(L)
mL/m 0.1 - 99999.9(mL/m) 0.1 100 (mL)

70 Operation programming
Default
USER
mode
PG.EXT
(EXT mode setting)
With EFS flow sensor:
ANA.R/V, PLS, BATCH
- ANA.R
With no EFS flow sensor:
DIV, MULT, ANA.R/V, PLS
- DIV
DIV, MULT or BATCH in EXT
mode selection
bF-OF/bF-ON -
DIV: bF-OF
MULT/BATCH:
bF-ON
ANA.R or ANA.V in EXT
mode selection
ANA.R/V - ANA-R
ANA.V is selected in user mode LINE/BOX/LIMIT - LINE
PLS in EXT
mode selec-
tion
RANGE 500/100 - 500
CURVE LINE/BOX/LIMIT - LINE
OUT
OUT1
1.OUT.T
(OUT1 selection)
1.ALM/1.FL.ER/1.F.CHK/
1.OFF
- 1.ALM
1.STOP
(STOP alarm)
ON/OFF - ON
1.P.STP
(Pre-STOP alarm)
ON/OFF - OFF
1.I.LOC
(Interlock alarm)
ON/OFF - OFF
1.COMP
(BATCH/MULTcompletion)
ON/OFF - OFF
1.FL.ER
1.FLOW
(Out of measure-
ment)
0.1 - 999.9 mL/m
(0.006 - 59.994 L/h)
(0.001 - 15.828 GPH)
0.1
2.0 mL/m
(0.120 L/h)
(0.031 GPH)
1.OUT.D
(OUT1 delay time)
0 - 999 sec 1 0 sec
1.F.CHK
1.FC.AL
(Poor flow alarm)
0.0 - 999.9 mL/m
(0.000 - 59.994 L/h)
(0.000 - 15.828 GPH)
0.1
(0.001)
3.0 mL/m
(0.180 L/h)
(0.047 GPH)
1.AL.TM
(Alarm delay time)
1. - 30. min 1 5.
1.ON-OF
(Pumpon-offselection)
P.ON/P.OFF - P.OFF
1.OUT.L
(OUT logic selection)
N.O./N.C. - N.O.
OUT2
2.OUT.T
(OUT2 selection)
2.SENS/2.SPM/2.ALM/
2.FL.ER/2.F.CHK/2.OFF
- 2.OFF
2.STOP
(STOP alarm)
ON/OFF - ON
2.P.STP
(Pre-STOP alarm)
ON/OFF - OFF
2.I.LOC
(Interlock alarm)
ON/OFF - OFF
2.COMP
(BATCH/MULTcompletion)
ON/OFF - OFF
2.FL.ER
2.FLOW
(Out of measure-
ment)
0.1 - 999.9 mL/m
(0.006 - 59.994 L/h)
(0.001 - 15.828 GPH)
0.1
(0.001)
2.0 mL/m
(0.120 L/h),
(0.031 GPH)
2.OUT.D
(OUT2 delay time)
0 - 999 sec 1 0 sec

71
Operation
Default
USER
mode
OUT
OUT2
2.F.CHK
2.FC.AL
(Poor flow alarm)
0.0 - 999.9 mL/m
(0.000 - 59.994 L/h)
(0.000 - 15.828 GPH)
0.1
(0.001)
3.0 mL/m
(0.180 L/h),
(0.047 GPH)
2.AL.TM
(Alarm delay time)
1. - 30. min 1 5.
2.ON-OF
(Pumpon-offselection)
P.ON,P.OFF - P.OFF
2.OUT.L
(OUT logic selection)
N.O./N.C. - N.O.
ANA-
LOGUE
ANA.4
(4mA)
0.0 - 100.0 %
0 - 360 spm
0.0 - 999.9 mL/m
(0.000 - 59.994 L/h)
(0.000 - 15.828 GPH)
0.1
1
0.001
0.0 %
0 spm
0.0000mL/m
(L/h)
(GPH)
ANA.20
(20mA)
0.0 - 100.0 %
0 - 360 spm
0.0 - 999.9 mL/m
(0.000 - 59.994 L/h)
(0.000 - 15.828 GPH)
0.1
1
0.001
100.0 %
360 spm
38.0 mL/m
(2.280 L/h)
(0.601 GPH)
F.CHK(FCP/FCM setting)*2 A.MODE/B.MODE/
C.MODE/D.MODE/OFF
- OFF
A.MODE
FC.MUM
(Number of dry shots)
1 - 60 1 1
B.MODE/
C.MODE
FC.MUM
(Number of dry shots)
1 - 60 1 1
FC.POF
(Dry shots to P-OFF)
1 - 60 1 1
D.MODE
FC.TIM
(Detection time)
1. - 60. min 1 1.
FC.PRM
(Priming time)
1. - 60. min 1 1.
FC.RTN
(Return time)
0.01 - 60.00 min. sec 1 1.00
INPUT
setting
INPUT
INP.T (Input1 mode
selection)
PULS/I.LOCK/AUX/
B-S/S (BATCH)
- PULS
INP.L (Input1 logic
selection)
CL-OF/CL-ON - CL-ON
STOP. L (STOP) CL-OF/CL-ON - CL-ON
P.STP. L (Pre-STOP) CL-OF/CL-ON - CL-ON
CODE (PIN number) 00000 - 99999 1 00000
DATA
TOTAL (Total flow volume) 0 - 99999(mL/L/G) - 0(mL/L/G)
SHOT.C (Total number of strokes) 0 - 99999 - 0 shot (×1k)
OUT 1.C (Total output) 0 - 99999 - 0
OUT 2.C (Total output) 0 - 99999 - 0
PWR.ON(Totalpowerconnectiontime) 0 - 99999 hour - 0 hour
OPER.T (Total operating time) 0 - 99999 hour - 0 hour
*1 The flow rate increases/decreases by 1spm as pushing the UP/DOWN keys. Press
and hold either key for quick change.
*2 The F.CHK parameter is not enabled when the EFS flow sensor is connected to the
pump.

72
Programming flow
Power ON
EXT mode
Stroke rate setting
Manual mode
Manual operation
Prime mode
Save Cancel
1 sec.
Calibration mode 3 sec.
1 sec.
ANA.V setting routine ANA.R setting routine
Flow rate display

73
Operation
EXT mode selection
Keypad lock
3 sec.
3 sec.
Any key
other than
User mode
OUTPUT setting
INPUT setting
EXT mode setting
FCP/FCM setting
PIN number setting
Operation history
or
See ANA-V
setting routine
See ANA-R
setting routine
PLS setting routine
See PLS
setting routine

Manual operation
Run or stop the pump by keypad operation.
Turn on power.
The LED lights and a display related to the
current mode appears on the screen.
*The pump waits in the manual mode when turn-
ing on power with a default setting or calls up a
previous mode at the last shutoff.
*The pump waits for 20 minutes to start operation
when powered on with the EFS flow sensor.
Enter manual mode.
Move to the next step when a stroke rate (0.1-100.0%) is shown on the
screen.
When the pump is in the EXT mode:
Push the start/stop key once to enter the wait state in the manual mode.
When the "STOP" or "-STOP" indication is on the screen:
See page 92 and 93 to release the condition.
Push the start/stop key.
The pump starts to run. The LED blinks green at each shot.
*The flow rate unit changes in between "spm", "%", "GPH", "L/h" and "mL/m".
2
1
3
ON LED

75
Operation
EXT operation
■ Digital control
The pump operation is controlled by the external (pulse) signal. Set a multiplier
or a divisor before operation. Digital control is divided into two mode as below.
DIV mode
Set the number of signals per shot to control the pump.
MULT mode
Set the number of shots per signal to control the pump.
NOTE
When the pump is used with the EFS sensor, the DIV or MULT mode is not enabled.
Enter EXT mode.
Push the EXT key to move from manual mode to EXT mode.
Press and hold the EXT key for one second and enter the EXT mode
selection.
Select "DIV" or "MULT".
Scroll through the EXT mode selection by the UP and DOWN keys.
2
1
3
or

Push the EXT key once.
Use the UP or DOWN key to set a divisor or a multiplier.
*Shift to the next digit by pushing the DISP key for divisor setting.
Push the EXT key to return to the EXT mode selection.
Push the start/stop key to return to EXT mode.
The pump starts to run according to the setting.
■ Buffer ON/OFF selection (MULT/DIV)
If the buffer is turned ON, excessive external signals that have not been
processed in the MULT or DIV operation are temporally stored and processed
after the signal entry is stopped.
• When "bM-ON" is selected:
Excessive external signals are stored.
• When "bM-OF" is selected:
Excessive external signals are not stored.
5
4
6
7
EXT mode setting
Divisor setting Multiplier setting

77
Operation
2
1
3
■ Analogue proportional control
Select the "ANA.V" or "ANA.R" option in the user mode.
When the "ANA.R" mode is selected:
The "4-20", "20-4", "0-20" and "20-0" presets are available.
When the "ANA.V" mode is selected:
A new proportional line can be set with the LINE, BOX or
LIMIT patterns.
NOTE
The feedback from the EFS flow sensor supports the ANA.V proportional control only.
ANA.R (Analogue rigid)
Enter EXT mode.
selection.
Select "ANA.R".
Skip to the item 5 when "ANA.R" is selectable. Otherwise, skip to the
item 4 to select "ANA.R" through the EXT mode setting.
EXT mode
1 sec
keys to scroll

Return to the MAN mode (pump stops). Press and hold the EXT key
for 1 second to call up the user mode menu. Select the "PG.EXT",
"ANA" and then "ANA.R" options with the EXT key.
Return to the EXT mode selection after the selection by pushing the
start/stop key a few times.
Push the EXT key and scroll through the ANA.R preset patterns by
the UP and DOWN keys.
Push the EXT key to return to the EXT mode selection and then
push the start/stop key to enter EXT mode.
The pump starts to run in proportional control according to the ANA.R
setting.
4
5
6
4-20mA
0-360(/240/180)spm
20-4mA
0-360(/240/180)spm
0-20mA
0-360(/240/180)spm
20-0mA
0-360(/240/180)spm

79
Operation
ANA.V (Analogue variable)
Enter EXT mode.
selection.
Select the "ANA.R" or "ANA.V" option.
Push the start/stop key twice to return to the MAN mode.
Press and hold the EXT key for 1 second to call up the user mode
menu.
2
1
3
EXT mode
1 sec
keys to scroll
4
5

Select the "PG.EXT" option and push the EXT key.
Select the "ANA" option and then the "ANA.R" or "ANA.V" option.
Use the UP and DOWN keys to select the "CURVE" option and
determine the operation pattern from the "LINE", "BOX" or "LIMIT"
options. See below.
Return to the EXT mode selection after the selection.
6
7
8
keys to scroll
keys to scroll
keys to scroll
Operational pattern
selection with the
ANA.V control mode

81
Operation
Push the EXT key to move the the ANA.V setting routine.
Enter a current value and a stroke rate at SP1 and SP2.
Push the start/stop key twice to move back to the EXT mode.
The pump starts to run in proportional with the external current signal.
Enter a current value at
set point 1.
set point 2.
Enter a stroke rate at set
point 1.
point 2.
10
9
11

■ Pulse proportional control
Choose the "PLS" option in the EXT mode selection.
When the "PLS" option is selected:
A proportional control pattern can be newly set according to
the LINE, BOX, or LIMIT pattern.
PLS (Pulse variable)
Enter EXT mode.
selection.
Select the "PLS" option.
Push the start/stop key twice to return to the MAN mode.
Press and hold the EXT key for 1 second to call up the user mode
menu.
2
1
3
EXT mode
1 sec
keys to scroll
4
5

83
Operation
Select the "PG.EXT" option and push the EXT key.
Select the "RANGE" option and determine the pulse rate
Select the "100" or "500" option according to the external pulse rate
inputted from an external device to the pump.
*Applicable pulse rate of 0.0-100.0Hz with the "100" option.
*Applicable pulse rate of 0.0-50.00Hz with the "500" option.
Use the UP and DOWN keys to select the "CURVE" option and
determine the operation pattern from the "LINE", "BOX" or "LIMIT"
options. See below.
Return to the EXT mode selection after the selection.
keys to scroll
keys to scroll
keys to scroll
Operational pattern
selection with the
PLS control mode
6
7
8

Push the EXT key to move the the PLS setting routine.
Enter a current value and a stroke rate at SP1 and SP2.
The SP1 and 2 pulse rates can be shifted to the next digit every time the
DISP key is pushed.
Push the start/stop key twice to move back to the EXT mode.
The pump starts to run in proportional with the external pulse.
set point 1.
set point 2.
point 1.
point 2.
10
9
11

85
Operation
Priming function
This key operation runs the pump at the maximum stroke rate in operation.
Press and hold both the UP and DOWN keys.
The pump runs at the maximum stroke rate while both keys are pressed.
Keypad lock
Keypad lock can be active for the prevention of erroneous key operation.
NOTE
Any key operation is not acceptable when the keypad lock is active. In an emergency,
pressing the start/stop key for three seconds, the pump enters a wait state and stops
running. Pressing the same key once again will resume operation.
■ Keypad lock activation
Press and hold the start/stop key for more than three seconds.
"LOCK" indication appears on the screen.
1
Press & hold both keys.
3 sec
1

■ Keypad lock release
Push any key other than the start/stop.
Enter pin number.
Shift to the next digit by pushing the DISP key.
*A default PIN number is "00000".
Push the EXT key
The keypad lock state then will be released.
*If the pin number is not correct, "FAIL" will be shown and the lock state will
continue.
■ Emergency stop with a keypad lock state
Press and hold the start/stop key for three seconds.
The pump enters a wait state and stops running with keypad locked.
Pressing the same key once again will resume operation with keypad
locked.
*Keypad lock can not be released during emergency stop. Always restart the
pump and then enter the deactivation pin number.
2
1
3
3 sec
1

87
Operation
Unit change
%, spm, GPH, L/h and mL/m cycle through every time the DISP key is pushed.
To ensure the correct flow reading, flow calibration must be performed in ad-
vance. See page 67 for detail. A stroke rate is shown in % with default setting.
■ Stroke rate unit
% indication
A flow rate is shown in between 0 and 100%. 100% means
360spm.
spm indication
Shows a stroke rate per minute.
■ Flow rate unit
The following flow units are available.
GPH indication
A flow rate is shown in gallon per hour.
L/h indication
A flow rate is shown in litter per hour.
mL/m indication
A flow rate is shown in millilitre per minute.
*A target flow is shown with the "Disp" icon when the EFS flow sensor is installed.
*An actual flow rate is shown with the "Disp" icon during feedback control with the EFS
flow sensor.

88
User mode
The following features can be set. Move to the user mode with the EXT key in
the wait state (MAN mode).
OUTPUT setting (page 89)
Parameter setting of the OUT1, OUT2 and analogue output.
INPUT setting (page 92)
Parameter setting of the INPUT.
EXT mode setting (page 94)
Selection of buffer on/off (MULT/DIV) and ANA.R/ANA.V/PLS
for the EXT mode.
FCP/FCM setting (page 94)
Selection of the operational behaviour with the FCP or FCM.
PIN number entry (page 97)
A PIN is required to release a keypad lock state.
Operation history (page 98)
Information such as total flow volume and total power con-
nection time is shown.

89
Operation
■ Output setting
Parameter setting for the OUT1(mechanical relay), OUT2(PhotoMOS relay)
and analogue output.
OUT1
OUT2
Enabled
Disabled
Synchronous
output (sensor)
Synchronous
output (pump)
Enabled
Disabled
Selection menus appear
when "1.ALM" is se-
lected. See the 1.ALM
selection menus.
keys to scroll.
keys to scroll.
Selection menus ap-
pear when "2.ALM" is
selected. See the 2.ALM
selection menus.
keys to
increase/decrease.
keys to
increase/decrease.
Enter a flow/stroke
rate at 4mA.
Enter a flow/stroke
rate at 20mA.

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